perf ui progress: Reimplement using slang

Just another step in stopping the use of libnewt in perf.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vkb9jh5kkzl5ep3puoatd6an@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 22 insertions, 69 deletions

diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index fd53db47e3de..510adaccba84 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -19,16 +19,8 @@ static inline int ui_helpline__show_help(const char *format __used, va_list ap _
         return 0;
 }
 
-static inline struct ui_progress *ui_progress__new(const char *title __used,
-                                                   u64 total __used)
-{
-        return (struct ui_progress *)1;
-}
-
-static inline void ui_progress__update(struct ui_progress *self __used,
-                                       u64 curr __used) {}
-
-static inline void ui_progress__delete(struct ui_progress *self __used) {}
+static inline void ui_progress__update(u64 curr __used, u64 total __used,
+                                       const char *title __used) {}
 #else
 extern char ui_helpline__last_msg[];
 int ui_helpline__show_help(const char *format, va_list ap);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 20e011c99a94..91c6442ef966 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1012,7 +1012,6 @@ int __perf_session__process_events(struct perf_session *session,
 {
         u64 head, page_offset, file_offset, file_pos, progress_next;
         int err, mmap_prot, mmap_flags, map_idx = 0;
-        struct ui_progress *progress;
         size_t  page_size, mmap_size;
         char *buf, *mmaps[8];
         union perf_event *event;
@@ -1030,9 +1029,6 @@ int __perf_session__process_events(struct perf_session *session,
                 file_size = data_offset + data_size;
 
         progress_next = file_size / 16;
-        progress = ui_progress__new("Processing events...", file_size);
-        if (progress == NULL)
-                return -1;
 
         mmap_size = session->mmap_window;
         if (mmap_size > file_size)
@@ -1095,7 +1091,8 @@ more:
 
         if (file_pos >= progress_next) {
                 progress_next += file_size / 16;
-                ui_progress__update(progress, file_pos);
+                ui_progress__update(file_pos, file_size,
+                                    "Processing events...");
         }
 
         if (file_pos < file_size)
@@ -1106,7 +1103,6 @@ more:
         session->ordered_samples.next_flush = ULLONG_MAX;
         flush_sample_queue(session, ops);
 out_err:
-        ui_progress__delete(progress);
         perf_session__warn_about_errors(session, ops);
         perf_session_free_sample_buffers(session);
         return err;
diff --git a/tools/perf/util/ui/progress.c b/tools/perf/util/ui/progress.c
index d7fc399d36b3..68d2c548abe3 100644
--- a/tools/perf/util/ui/progress.c
+++ b/tools/perf/util/ui/progress.c
@@ -1,60 +1,28 @@
-#include <stdlib.h>
-#include <newt.h>
 #include "../cache.h"
 #include "progress.h"
+#include "libslang.h"
+#include "ui.h"
+#include "browser.h"
 
-struct ui_progress {
-        newtComponent form, scale;
-};
-
-struct ui_progress *ui_progress__new(const char *title, u64 total)
-{
-        struct ui_progress *self = malloc(sizeof(*self));
-
-        if (self != NULL) {
-                int cols;
-
-                if (use_browser <= 0)
-                        return self;
-                newtGetScreenSize(&cols, NULL);
-                cols -= 4;
-                newtCenteredWindow(cols, 1, title);
-                self->form  = newtForm(NULL, NULL, 0);
-                if (self->form == NULL)
-                        goto out_free_self;
-                self->scale = newtScale(0, 0, cols, total);
-                if (self->scale == NULL)
-                        goto out_free_form;
-                newtFormAddComponent(self->form, self->scale);
-                newtRefresh();
-        }
-
-        return self;
-
-out_free_form:
-        newtFormDestroy(self->form);
-out_free_self:
-        free(self);
-        return NULL;
-}
-
-void ui_progress__update(struct ui_progress *self, u64 curr)
+void ui_progress__update(u64 curr, u64 total, const char *title)
 {
+        int bar, y;
         /*
          * FIXME: We should have a per UI backend way of showing progress,
          * stdio will just show a percentage as NN%, etc.
          */
         if (use_browser <= 0)
                 return;
-        newtScaleSet(self->scale, curr);
-        newtRefresh();
-}
 
-void ui_progress__delete(struct ui_progress *self)
-{
-        if (use_browser > 0) {
-                newtFormDestroy(self->form);
-                newtPopWindow();
-        }
-        free(self);
+        pthread_mutex_lock(&ui__lock);
+        y = SLtt_Screen_Rows / 2 - 2;
+        SLsmg_set_color(0);
+        SLsmg_draw_box(y, 0, 3, SLtt_Screen_Cols);
+        SLsmg_gotorc(y++, 1);
+        SLsmg_write_string((char *)title);
+        SLsmg_set_color(HE_COLORSET_SELECTED);
+        bar = ((SLtt_Screen_Cols - 2) * curr) / total;
+        SLsmg_fill_region(y, 1, 1, bar, ' ');
+        SLsmg_refresh();
+        pthread_mutex_unlock(&ui__lock);
 }
diff --git a/tools/perf/util/ui/progress.h b/tools/perf/util/ui/progress.h
index a3820a0beb5b..d9c205b59aa1 100644
--- a/tools/perf/util/ui/progress.h
+++ b/tools/perf/util/ui/progress.h
@@ -1,11 +1,8 @@
 #ifndef _PERF_UI_PROGRESS_H_
 #define _PERF_UI_PROGRESS_H_ 1
 
-struct ui_progress;
+#include <../types.h>
 
-struct ui_progress *ui_progress__new(const char *title, u64 total);
-void ui_progress__delete(struct ui_progress *self);
-
-void ui_progress__update(struct ui_progress *self, u64 curr);
+void ui_progress__update(u64 curr, u64 total, const char *title);
 
 #endif